D-8M industrial rubber timing belt 1. Low noise operation 2. No need of lubricant 3. ... a factory,not a trading company D-8M industrial rubber timing belt 1,top rubber:(cr,HNBR) to protect the lining tensile ... belts here.The types we have for the Neoprene(rubber) timing belt are as follows:MXL, XL, XXL, L, H, XH, XXH ...